For newcomers. @cryptomoogle's a guide to 8bidou.
Yonkaku Garo, 3x12 Gallery for 8x8.
If you just want to browse the galleries, your smart phone will do fine. Making gallery requires a larger screen, such as a PC or tablet.
8BIDOU RHODOPSIN, 24x24 fullcolor.
8BIDOU 銀塩 GIN-EN, 24x24 monochrome.
If you don't be familier with Hic et Nunc UI, please use Unobtrusive Interface - 8bidou.